roadhouse: don't do any magic here, just list the admin usersnames

Signed-off-by: Mattia Rizzolo <mattia@debian.org>

playbooks/roadhouse.yml

@@ -8,17 +8,10 @@
   roles:
 
     - role: common
-
-      # SSH keys allowed to deploy with ansible (user "manager")
-      management_ssh: |
-        {{ ssh_keys_pietroalbini }}
-        {{ ssh_keys_mapreri }}
-        {{ ssh_keys_janvitus }}
-
       admin_users:
-        pietroalbini: "{{ ssh_keys_pietroalbini }}"
-        mapreri: "{{ ssh_keys_mapreri }}"
-        janvitus: "{{ ssh_keys_janvitus }}"
+        - janvitus
+        - mattia
+        - pietro
 
 
     - role: nginx